Description: Dimmable RGBCW Smart Bulb: RGBCW=RGB + 2700-6500K Tunable White.Brightness,Temperature and Saturation are Adjustable.With over 16 million Colors. Voice/App Remote Control:Works with Alexa,Google Assistant for Voice Control.Remote control your light with APP. Schedule & Customize: Control Your Lights Your Way.Schedule Your Bulbs to Turn on or off automatically at Pre-set time. Easy Set-up, No Hub Required,Set-up is Pretty Easy,Lamp HolderE27 B22 E26 High Quality & Energy Saving,Control principle: Wi-Fi Specification: Control principle: Wi-Fi APP name: Magic Home Channel5 RGBCW Power9w Luminous850LM/1000LM(optional Irritation angle 170 Color temperature2700K-6500K Lamp HolderE27 B22 E26 Bulb MaterialLamp cover/Lamp body: PBT/Plastic plus Aluminum Working Voltage:100-264VAC,50/60HZ Life hour40000H Scope of applicationIndoor lighting Size: 95x140mm/3.74x5.51 inch Control Distance: No barrier, 40m Bulb MaterialLamp cover/Lamp body: PBT/Plastic plus Aluminum Package Includes: 1 Piece voice control smart bulb